In this post, you’ll learn more about the Error ERROR_GRAPHICS_ADAPTER_ACCESS_NOT_EXCLUDED – 0xC026243B that is returned when working with the COM-based APIs in Win32
Win32 COM Error
ERROR_GRAPHICS_ADAPTER_ACCESS_NOT_EXCLUDED – 0xC026243B
Win32 COM Error Error Description
An operation is being attempted that requires the display adapter to be in a quiescent state.